Support muting API methods

[mynetx]

POST mutes/users/create Mutes the user specified in the ID parameter for the authenticating user. Returns the muted user in the requested format when successful. Returns a string describing the failure condition when unsuccessful. Actions taken in this method are asynchronous and changes will be eventually consistent.
POST mutes/users/destroy Un-mutes the user specified in the ID parameter for the authenticating user. Returns the unmuted user in the requested format when successful. Returns a string describing the failure condition when unsuccessful. Actions taken in this method are asynchronous and changes will be eventually...
GET mutes/users/ids Returns an array of numeric user ids the authenticating user has muted.
GET mutes/users/list Returns an array of user objects the authenticating user has muted.

https://dev.twitter.com/discussions/28358